Boxer Oil Temperature Sensor Issue

I had a similar issue with my Boxer. Sounds very familiar. The oil pressure warning came on intermittently, with a warning light. Do you have sensor readings, or are you just going by the warning lights?

I'm relying on diagnostic trouble codes and the warning light. I haven't measured the sensor's output directly. Do you suggest a specific test or focus point based on your experience?

I'd recommend a workshop. Even if it's 'just' the cable, the error can be tricky, especially with the oil pressure light. In my case, it was the sensor.

I had a technician inspect it, as you suggested. It was a faulty engine oil temperature sensor due to a defective connection. The repair was 95€.